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Wireless World valve articles from the past
Wireless World valve articles from the past
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Old 31st January 2011, 09:47 PM   #1
DouglasSelf is offline DouglasSelf  United Kingdom
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Default Wireless World valve articles from the past

You might be interested to know that I have just opened a Wireless World archive page on my website. The articles are old enough to be out of copyright, and so inevitably are focused on valve technology. The first item is a 1957 article on transformerless valve amplifiers.


See it here: The Wireless World Archive


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Old 31st January 2011, 10:20 PM   #2
taj is offline taj  Canada
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That's great, Douglas. Very much appreciated. Thanks.

..Todd
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Old 31st January 2011, 10:21 PM   #3
tunneldiode is offline tunneldiode  England
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Thankyou, Douglas for an interesting WW article that I haven't got (my earliest WW dates from 1962)
While we're here, thanks also for "The Baxandall Papers", pure-gold.
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Old 1st February 2011, 07:53 AM   #4
toprepairman is offline toprepairman  United Kingdom
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Nice one, Doug.
Incidentally I lent my copy of your excellent book (amp design) to someone a little while ago, and I don't remember who and it hasn't come back, boo hoo.
Do you ever visit the Tonbrigdeaudiojumble?
Regards
Henry
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Old 1st February 2011, 08:37 AM   #5
Rod Coleman is offline Rod Coleman  United Kingdom
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Wireless World valve articles from the past
Valves, Douglas? Impressions gained from reading your own articles in the same Wireless organ left me with the impression that you regarded the thermionic FET as a plaguey anachronism -doomed to a well-earned extinction ere the Millennium turned.

Or have the intervening years softened your heart. Can we expect articles on squeezing the most out of a 2A3, supported by transistor current sources and new ingenuities?
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Old 1st February 2011, 10:15 AM   #6
taj is offline taj  Canada
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Rod, you're dreaming.

..Todd
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Old 1st February 2011, 04:11 PM   #7
DouglasSelf is offline DouglasSelf  United Kingdom
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Quote:
Originally Posted by Rod Coleman View Post
Valves, Douglas? Impressions gained from reading your own articles in the same Wireless organ left me with the impression that you regarded the thermionic FET as a plaguey anachronism -doomed to a well-earned extinction ere the Millennium turned.

Or have the intervening years softened your heart. Can we expect articles on squeezing the most out of a 2A3, supported by transistor current sources and new ingenuities?
Softened my heart? You must have the wrong bloke. I think valves are an expensive, inefficient, unreliable, noisy, non-linear and potentially dangerous way to make an amplifier, but apart from that I have nothing against them.

Having said that, I think any bit of amplification technology can be interesting, eg:

Electro-Mechanical amplifiers

or even:

Mechanical Amplifiers.

I am just about to upload a valve amplifier design by Peter Baxandall. Anything written by Peter is worth reading.
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Old 1st February 2011, 04:39 PM   #8
Rod Coleman is offline Rod Coleman  United Kingdom
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Wireless World valve articles from the past
Non-Linear? You must have the wrong device. compared to bipolar transistor??

Still, here's a kind of glass bottle you may prefer the look of:




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Old 1st February 2011, 04:50 PM   #9
tunneldiode is offline tunneldiode  England
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I certainly agree with expensive.
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Old 1st February 2011, 05:27 PM   #10
radiostar is offline radiostar  Yugoslavia
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Great!!! TNX Douglas!!!
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